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   <div id="projectname">CMU462 Library
   &#160;<span id="projectnumber">1.0</span>
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   <div id="projectbrief">15-462/15-662: Computer Graphics (Fall 2015)</div>
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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_93cde9e1f49b119e2b24d2ae2dcc682a.html">CMU462</a></li>  </ul>
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<div class="title">timer.h</div>  </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="preprocessor">#ifndef CMU462_TIMER_H</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="preprocessor">#define CMU462_TIMER_H</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;</div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="preprocessor">#include &quot;CMU462.h&quot;</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="preprocessor">#include &lt;chrono&gt;</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;</div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespace_c_m_u462.html">CMU462</a> {</div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;</div>
<div class="line"><a name="l00012"></a><span class="lineno"><a class="line" href="class_c_m_u462_1_1_timer.html">   12</a></span>&#160;<span class="keyword">class </span><a class="code" href="class_c_m_u462_1_1_timer.html">Timer</a> {</div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160; <span class="keyword">public</span>:</div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;</div>
<div class="line"><a name="l00018"></a><span class="lineno"><a class="line" href="class_c_m_u462_1_1_timer.html#af1ce06f7092988480ee89f0cccf62a9a">   18</a></span>&#160;  <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="class_c_m_u462_1_1_timer.html#af1ce06f7092988480ee89f0cccf62a9a">start</a>() {</div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;    t0 = std::chrono::steady_clock::now();</div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;  }</div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;</div>
<div class="line"><a name="l00025"></a><span class="lineno"><a class="line" href="class_c_m_u462_1_1_timer.html#a367ad2569ce28e00aa0ecd4f9cc29767">   25</a></span>&#160;  <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="class_c_m_u462_1_1_timer.html#a367ad2569ce28e00aa0ecd4f9cc29767">stop</a>() {</div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;    t1 = std::chrono::steady_clock::now();</div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;  }</div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;</div>
<div class="line"><a name="l00032"></a><span class="lineno"><a class="line" href="class_c_m_u462_1_1_timer.html#a40258919a91465b46cf68f07fdfe0fc5">   32</a></span>&#160;  <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_c_m_u462_1_1_timer.html#a40258919a91465b46cf68f07fdfe0fc5">duration</a>() {</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;    <span class="keywordflow">return</span> (std::chrono::duration&lt;double&gt;(t1 - t0)).count();</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;  }</div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160; <span class="keyword">private</span>:</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;  std::chrono::time_point&lt;std::chrono::steady_clock&gt; t0;</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;  std::chrono::time_point&lt;std::chrono::steady_clock&gt; t1;</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;};</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;} <span class="comment">// namespace CMU462</span></div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="preprocessor">#endif //CMU462_TIMER_H</span></div>
<div class="ttc" id="namespace_c_m_u462_html"><div class="ttname"><a href="namespace_c_m_u462.html">CMU462</a></div><div class="ttdef"><b>Definition:</b> CMU462.h:8</div></div>
<div class="ttc" id="class_c_m_u462_1_1_timer_html_a40258919a91465b46cf68f07fdfe0fc5"><div class="ttname"><a href="class_c_m_u462_1_1_timer.html#a40258919a91465b46cf68f07fdfe0fc5">CMU462::Timer::duration</a></div><div class="ttdeci">double duration()</div><div class="ttdoc">Return duration between the last call to start and last call to stop. </div><div class="ttdef"><b>Definition:</b> timer.h:32</div></div>
<div class="ttc" id="class_c_m_u462_1_1_timer_html_a367ad2569ce28e00aa0ecd4f9cc29767"><div class="ttname"><a href="class_c_m_u462_1_1_timer.html#a367ad2569ce28e00aa0ecd4f9cc29767">CMU462::Timer::stop</a></div><div class="ttdeci">void stop()</div><div class="ttdoc">Stops the timer. </div><div class="ttdef"><b>Definition:</b> timer.h:25</div></div>
<div class="ttc" id="class_c_m_u462_1_1_timer_html_af1ce06f7092988480ee89f0cccf62a9a"><div class="ttname"><a href="class_c_m_u462_1_1_timer.html#af1ce06f7092988480ee89f0cccf62a9a">CMU462::Timer::start</a></div><div class="ttdeci">void start()</div><div class="ttdoc">Starts the timer. </div><div class="ttdef"><b>Definition:</b> timer.h:18</div></div>
<div class="ttc" id="class_c_m_u462_1_1_timer_html"><div class="ttname"><a href="class_c_m_u462_1_1_timer.html">CMU462::Timer</a></div><div class="ttdoc">A basic timer class. </div><div class="ttdef"><b>Definition:</b> timer.h:12</div></div>
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